45105419 has 4 divisors (see below), whose sum is σ = 45504696. Its totient is φ = 44706144.

The previous prime is 45105397. The next prime is 45105421. The reversal of 45105419 is 91450154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45105419 - 2⁸ = 45105163 is a prime.

It is a super-2 number, since 2×45105419² = 4068997646331122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45105391 and 45105400.

It is not an unprimeable number, because it can be changed into a prime (45105499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199469 + ... + 199694.

It is an arithmetic number, because the mean of its divisors is an integer number (11376174).

Almost surely, 2^45105419 is an apocalyptic number.

45105419 is a deficient number, since it is larger than the sum of its proper divisors (399277).

45105419 is a wasteful number, since it uses less digits than its factorization.

45105419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399276.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 45105419 is about 6716.0568044054. The cubic root of 45105419 is about 355.9668650514.

The spelling of 45105419 in words is "forty-five million, one hundred five thousand, four hundred nineteen".